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ext4: move s_reserved_gdt_blocks and addressable checking into ext4_check_geometry()

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These two checkings are more suitable to be put into
ext4_check_geometry() rather than spreading outside.

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20230323140517.1070239-7-yanaijie@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Jason Yan 2023-03-23 22:05:15 +08:00 committed by Theodore Ts'o
parent 68e624398f
commit 269e9226c2
1 changed files with 19 additions and 19 deletions
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38
fs/ext4/super.c
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@ -4718,6 +4718,25 @@ static int ext4_check_geometry(struct super_block *sb,
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
__u64 blocks_count;
int err;
if (le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) > (sb->s_blocksize / 4)) {
ext4_msg(sb, KERN_ERR,
"Number of reserved GDT blocks insanely large: %d",
le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks));
return -EINVAL;
}
/*
* Test whether we have more sectors than will fit in sector_t,
* and whether the max offset is addressable by the page cache.
*/
err = generic_check_addressable(sb->s_blocksize_bits,
ext4_blocks_count(es));
if (err) {
ext4_msg(sb, KERN_ERR, "filesystem"
" too large to mount safely on this system");
return err;
}
/* check blocks count against device size */
blocks_count = sb_bdev_nr_blocks(sb);
@ -5174,13 +5193,6 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
if (ext4_check_feature_compatibility(sb, es, silent))
goto failed_mount;
if (le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) > (sb->s_blocksize / 4)) {
ext4_msg(sb, KERN_ERR,
"Number of reserved GDT blocks insanely large: %d",
le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks));
goto failed_mount;
}
if (sbi->s_daxdev) {
if (sb->s_blocksize == PAGE_SIZE)
set_bit(EXT4_FLAGS_BDEV_IS_DAX, &sbi->s_ext4_flags);
@ -5252,18 +5264,6 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
if (ext4_handle_clustersize(sb))
goto failed_mount;
/*
* Test whether we have more sectors than will fit in sector_t,
* and whether the max offset is addressable by the page cache.
*/
err = generic_check_addressable(sb->s_blocksize_bits,
ext4_blocks_count(es));
if (err) {
ext4_msg(sb, KERN_ERR, "filesystem"
" too large to mount safely on this system");
goto failed_mount;
}
if (ext4_check_geometry(sb, es))
goto failed_mount;